Waveform shaping device

摘要

An object of the present invention is to provide a waveform shaping circuit by which the duty factor of clock pulses can be set to 50% with high accuracy even if the clock pulses are of a low voltage and a high frequency. The present invention is characterized by that an inverter amplifier for receiving clock pulses through an alternating current coupling capacitor is provided with a non-linear limiter element for limiting an amplitude of an output symmetrically in a positive and a negative sides, and a first current-limiting impedance and a second current-limiting impedance are connected between a power supply side terminal of the inverter amplifier and a power supply bus and between a grounding side terminal of the inverter amplifier and a grounding bus, respectively.